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/*
* Copyright (C) 2011, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.transport;
import java.util.Collection;
import java.util.List;
/**
* {@link org.eclipse.jgit.transport.PostReceiveHook} that delegates to a list
* of other hooks.
* <p>
* Hooks are run in the order passed to the constructor.
*/
public class PostReceiveHookChain implements PostReceiveHook {
private final PostReceiveHook[] hooks;
private final int count;
/**
* Create a new hook chaining the given hooks together.
*
* @param hooks
* hooks to execute, in order.
* @return a new hook chain of the given hooks.
*/
public static PostReceiveHook newChain(
List<? extends PostReceiveHook> hooks) {
PostReceiveHook[] newHooks = new PostReceiveHook[hooks.size()];
int i = 0;
for (PostReceiveHook hook : hooks)
if (hook != PostReceiveHook.NULL)
newHooks[i++] = hook;
switch (i) {
case 0:
return PostReceiveHook.NULL;
case 1:
return newHooks[0];
default:
return new PostReceiveHookChain(newHooks, i);
}
}
/** {@inheritDoc} */
@Override
public void onPostReceive(ReceivePack rp,
Collection<ReceiveCommand> commands) {
for (int i = 0; i < count; i++)
hooks[i].onPostReceive(rp, commands);
}
private PostReceiveHookChain(PostReceiveHook[] hooks, int count) {
this.hooks = hooks;
this.count = count;
}
}
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